Identify two different types of cells and explain what role they play in the body.

QUESTION POSTED AT 26/03/2020 - 09:02 PM

Answered by admin AT 26/03/2020 - 09:02 PM

White Blood Cells

They protect the body against both infectious disease and foreign invaders.

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Related questions

Use the dichotomous key below to identify the animals shown in the photograph?

A is a beaver and b is a long tailed weasel

ANSWERED AT 28/03/2020 - 12:56 PM


QUESTION POSTED AT 28/03/2020 - 12:56 PM

4. You and your family are driving through an apple orchard. You notice that the trees in the orchard have both red and yellow ripened apples on the same tree. How is this possible? Explain the process.

This is a possible scenario because plants have the ability to cross-pollinate. Cross pollination is the process in which a flower gets pollinated with pollen from another kind of flower of the same species. Insects, wind, and human intervention can be contributing factors to such phenomenon and it is very common in the farming industry to produce viable produces for consumption.

ANSWERED AT 28/03/2020 - 12:55 PM


QUESTION POSTED AT 28/03/2020 - 12:55 PM

How many chromosomes are present in each cell of this human

There is 23 chromosomes in a human.

ANSWERED AT 28/03/2020 - 12:55 PM


QUESTION POSTED AT 28/03/2020 - 12:55 PM

Which type of muscle decreases the size of the pupils of your eyes in bright light A)skeletal B)smooth C)cardiac D) A and C

The answer is B, smooth.

ANSWERED AT 28/03/2020 - 12:51 PM


QUESTION POSTED AT 28/03/2020 - 12:51 PM

What is the best synonym for hormone A. Bodily organ B. bodily tissue C. Blood cell D. Chemical Messenger

I would go with c because hormone have to travel blood cells

ANSWERED AT 28/03/2020 - 12:47 PM


QUESTION POSTED AT 28/03/2020 - 12:47 PM

What might happen if your body couldn't process glucose? A. You wouldn't be able to digest food B. You wouldn't have the energy you needed to function C. You would be more likely to catch diseases Or D. You would be constantly thirsty for water

B. you wouldn't have the energy to function
because glucose is a simple sugar that is an important energy source in living organisms

ANSWERED AT 28/03/2020 - 12:40 PM


QUESTION POSTED AT 28/03/2020 - 12:40 PM

Use what you know about natural selection to fill in the blanks in the hypothesis. It should answer the lab question, “What is the effect of the type of food available on the frequency of different types of bird beaks?” Hypothesis: If the type of food available changes, then…

If the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.


ANSWERED AT 28/03/2020 - 12:39 PM


QUESTION POSTED AT 28/03/2020 - 12:39 PM

Explain how a species, such as the panda, can become extinct.

I think that some animals are endangered mostly because of forest devastation. As wild animals live in the woods, their space is greatly reduced. This is all because of the human activity, that we cut trees to make buildings, industrial use in general...

ANSWERED AT 28/03/2020 - 12:38 PM


QUESTION POSTED AT 28/03/2020 - 12:38 PM

Marmots are a type of _______. a. canine b. feline c. squirrel d. nocturnal predator

Marmots are large squirrels. so it would be C

ANSWERED AT 28/03/2020 - 12:29 PM


QUESTION POSTED AT 28/03/2020 - 12:29 PM

1. How do your skeleton and muscular system work together, 2. What type of muscle tissue would you find in the heart? blood vessels? toes?

The answer to your first question involves a connection between your actions and your brain. Your bones and muscles work together through a series of impulses and signals communicated between the brain and skeletal muscles. In order to move, the nervous system then sends signals a skeletal muscle to contract. When the muscle contracts, this movement causes the attached bone to follow.

And as for your second question, 
The muscle tissue in your heart is cardiac, the muscle tissue in your blood vessels is smooth, and the muscle tissue in your toes is skeletal. 

I hope this helps you, have a nice day!

ANSWERED AT 28/03/2020 - 12:27 PM


QUESTION POSTED AT 28/03/2020 - 12:27 PM

Sort the phrases into the appropriate bins depending on which type of postsynaptic potential they describe. If a phrase describes both types of potentials, drag it to the "both" bin.

Excitatory postsynaptic possibilities (EPSPs) are excitatory in light of the fact that they make the postsynaptic neuron more prone to produce an activity potential by depolarizing the layer (making the film potential less negative) and conveying the layer potential more like an edge. This is regularly expert by opening ligand-gated Na+ diverts in the postsynaptic layer, which enables Na+ particles to enter the cell. 
Interestingly, inhibitory postsynaptic possibilities (IPSPs) make it more troublesome for the postsynaptic neuron to create an activity potential by hyperpolarizing the layer (making the film potential more negative) and moving the film potential more distant from the limit. This is frequently proficient by opening ligand-gated K+ directs in the postsynaptic layer, which enables K+ particles to leave the cell. 
Despite whether they are excitatory or inhibitory, all postsynaptic possibilities are reviewed, implying that their sizes are variable. (Activity possibilities, then again, are all-or-none occasions.) And on the grounds that a postsynaptic potential is not proliferated like an activity potential, its greatness diminishes with separation from the neurotransmitter along the cell body.

ANSWERED AT 28/03/2020 - 12:22 PM


QUESTION POSTED AT 28/03/2020 - 12:22 PM

Are individual amino acids likely to be found in the mouth? Explain.

Yes because in our saliva are enzymes that break down the food we eat.

ANSWERED AT 28/03/2020 - 12:16 PM


QUESTION POSTED AT 28/03/2020 - 12:16 PM

Who discovered DNA typing

Alec Jeffreys is a professor at the university of Leicester. and discover DNA typing in the UK .

ANSWERED AT 28/03/2020 - 12:11 PM


QUESTION POSTED AT 28/03/2020 - 12:11 PM

What is a cell called that isn't a sex cell?

Gametes is another word for sex cell

ANSWERED AT 28/03/2020 - 12:08 PM


QUESTION POSTED AT 28/03/2020 - 12:08 PM

What are the three sub-types of convergent plate boundaries

Oceanic-Continental Convergence
Oceanic-Oceanic Convergence
Continental-Continental Convergence

ANSWERED AT 28/03/2020 - 12:07 PM


QUESTION POSTED AT 28/03/2020 - 12:07 PM

Which types of molecules will easily pass through the fatty acid chains of the bilayer? Ions Hydrophobic Hydrophilic Polar

There are two important regions of a lipid that provide the structure of the lipid bilayer. Each lipid molecule contains a hydrophilic region, also called a polar head region.

ANSWERED AT 28/03/2020 - 12:06 PM


QUESTION POSTED AT 28/03/2020 - 12:06 PM

A recipe gives the instructions below. After browning the meat, pour off the fat from the pan. To further reduce fat, use a strainer. What type of separation methods are described in the recipe? A. decantation and screening B. distillation and screening C. decantation and centrifugation D. distillation and filtration

Based on the given instruction above, I can say that the separation methods that are being used in the recipe are DECANTATION AND SCREENING. The answer would be option A. When we say decantation, this is a process of separating liquids in order to remove the layer of liquid that has precipitates in order to produce a cleaner product. Hope this helps.

ANSWERED AT 28/03/2020 - 12:05 PM


QUESTION POSTED AT 28/03/2020 - 12:05 PM

In a paragraph address these following questions: • How does an underwater earthquake cause a tsunami? • Why do some earthquakes cause more damage than others? the paragraph needs to also include the following things: • discuss how the different types of waves are formed and describe how the waves travel • explain how scientists use waves to track and analyze earthquakes • cover recent events involving earthquakes and/or tsunamis that illustrate the points made in your explanation

What is an Earthquake

Earthquakes are vibrations in the earth's crust They occur along all plate boundaries but are more destructive usually at destructive plate boundaries

How are they measured

The magnitude or size of an earthquake can be measured by an instrument called a seisometer and are shown on a seismograph. The earthquakes are measured on the Richter scale from a value of 1 to 10. Each level of magnitude is 10 times more powerful than the previous. Therefore a level 7 is 100 time more powerful than a level 5.

Why do some earthquakes cause more damage than others?

Some earthquakes take place in rural areas where few people live and little is damaged

If they occur near large urban areas with many people, transport services, large buildings and services such as gas and electricity - there can be a great amount of deaths and damage

In Poor countries - LEDC's they have poorly built buildings, few emergency facilities, and the equipment to help rescue people - a good term to use is that they have a poor infrastructure.

In rich countries - MEDC's such as the USA they prepare for an earthquake with drills and have a great deal of trained emergency personnel and equipment to go to help the injured. They also try to build to withstand earthquake damage - ie The Transamerica building

The time of day can be important - If the earthquake hits when it is the rush hour or when there is a large number of people located in a certain area - this can cause a great loss of life

Obviously if they occur near to coasts then Tsunamis can cause a great deal of damage and deaths such as the 2004 Boxing Day Tsunami

ANSWERED AT 28/03/2020 - 12:00 PM


QUESTION POSTED AT 28/03/2020 - 12:00 PM

Which of the following are not characteristics of the cell wall? Select all that apply. cellulose and chitin hydrophillic and hydrophobic structures found in cells of fungi and algae double-layered membrane

Answer: hydrophobic and hydrophilic structures found in cells of fungi and algea

double-layered membrane

A cell wall is a a semi-permeable protective layer found in some cell types. This covers the cell membrane in plants cells, fungi, bacteria. Animal cells do not possess cell wall. The cell wall performs functions like protection, provides structural stability to a cell and support. Cell wall composition varies depending upon the type of organism. In plants the cell wall is made up of fibers of carbohydrate polymer called as cellulose. In bacteria cell walls are made up of peptidoglycan. In fungi cell wall is made up of chitin. Hydrophillic and hydrophobic structures found in cells of fungi and algae and double- layered membrane are features of cell membrane not of cell wall.          

ANSWERED AT 28/03/2020 - 11:48 AM


QUESTION POSTED AT 28/03/2020 - 11:48 AM

You farm kelp and sell the kelp for food and as fertilizer. The wastes from the kelp can be used in an integrated aquaculture system in which kelp farming can be coupled with farming of fish or abalone. Make an argument that you are using a sustainable system of growing a renewable resource, and explain why it is beneficial (and more sustainable) to couple algae farming with fish farming than simply to farm fish independently.

A sustainable system refers to producing less or probably non-existent debris that are caused by the production of a particular material (i.e. produce, energy). This is a sustainable form of production of coupling algae growth and fish farming because you no longer need the supply of fish feed from other sources that are made artificially but rather, you are using the available algae growth that you are culturing. Farm fishing alone is non-renewable because this produces much waste that can directly harm the environment.

ANSWERED AT 28/03/2020 - 11:34 AM


QUESTION POSTED AT 28/03/2020 - 11:34 AM

Pumping carbon dioxide directly into the deepest zones of the ocean has been proposed as a strategy to mitigate climate change. Do you feel this would be an effective method for protecting the environment? Explain your answer, including one pro and one con, and whether this would be a permanent solution.

Pro: Pumping carbon dioxide directly in to the deepest zones of the oceans can have a great deal in lessening the greenhouse gases that are produced within the Earth's atmosphere. 

Con: Some organisms are tolerant to such practice, but some experiments have yielded that some organisms are not and can die from such exposure to too much carbon dioxide mixing with other chemicals that are found underwater. 

Permanent Solution: Greenhouse gases can be minimized if there will be regulations regarding the production of goods in factories, mines, and agriculture. If these things are regulated, the release of such bad gases will be lessened and nothing underwater will be harmed.

ANSWERED AT 28/03/2020 - 11:34 AM


QUESTION POSTED AT 28/03/2020 - 11:34 AM

Which of the following does this chart represent? Promotes Growth Controls Tropisms Controls Budding Flowers Abscisis x Auxins x Cytokinins x Ethylene x Gibberallins x x A The completed plant tissues and the cells that initiate their growth B The relationship between different types of plant hormones and their functions C The differences between plant structures and the hormones they produce D The types of plant cells and their functions within the plant

Ans.

Plant hormones are signalling molecules, produced b plants that regulate growth, development and other cellular processes of plants. There are five types of plant hormones, which include abscisic acid, auxins, cytokinins, ethylene, and gibberallins.

Given chart represents relationship between different plant hormones and their responses or functions. Auxin promotes plant growth, plays role in tropism, abscisic acid plays role in seed and bud dormancy, cytokinin promotes cell division, ethylene controls plant growth and stimulates flowering, and gibberallins cause stem elongation.

Thus, the correct answer is option (B).

ANSWERED AT 28/03/2020 - 11:22 AM


QUESTION POSTED AT 28/03/2020 - 11:22 AM

Under which type of change would more organisms be able to survive? Why?

If the temperature of the earth was to rise. organisms would have a higher chance to survive because. bacteria thrives in warmth. an dies out in cold temperatures. so they will have a better chance to survive in the warmth.

ANSWERED AT 28/03/2020 - 11:17 AM


QUESTION POSTED AT 28/03/2020 - 11:17 AM

Sickle-cell disease is a genetic disorder that causes many red blood cells to become sickle shaped. As shown in the diagram, sickle-shaped cells can clog blood vessels and impede blood flow. What does the effect of sickle-shaped cells on blood flow imply about the shape of normal red blood cells?

Answer:

The answer is :

Blood viscosity increases and results in decreased blood flow throughout the body.

Explanation:

Blood flow is directly proportional to pressure and indirectly proportional to resistance.

Sickle-shaped blood cells tend to accumulate and increase the blood viscosity, which increases resistance. Therefore, blood viscosity increases and results in decreased blood flow throughout the body.

This answer is for STUDY ISLAND.

ANSWERED AT 28/03/2020 - 11:17 AM


QUESTION POSTED AT 28/03/2020 - 11:17 AM